Absolutely
Sure there's an advantage. In fact, TKO plus a side where 6 is tagged +1 and ace is tagged -1 is one of the new counts from Conrad Membrino available over on blackjackforumonline.com . I personally don't recommend any of these weird combinations, but they are there if you want them.
Here's a nerdy new article on Membrino's systems:
http://www.blackjackforumonline.com/content/MembrinoSims.pdf
"Can anyone tell me if there is any advantage to side count aces if I use the tko count?"